`FindWindow()` as emitted in CsWin32 has `SetLastError = true` despite the docs saying "This function does not modify the last error value.".

I don't know what the source of truth is here, but the discrepancy should be addressed one way or another. https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-findwindowa#remarks

Start by comparing the FindWindow declaration emitted in CsWin32 with the Microsoft documentation linked in the issue, then trace the corresponding Win32 metadata entry and its generation path. Done means the authoritative source and emitted SetLastError value agree, with any affected validation updated if the project has coverage for this declaration.

Written by the indexing model from the issue text.